Improved brace for spring-beds



ntml mes HENRY D. BOLT, OF ELMl-R-A, NEW.YORK.

Letters Patent No. 90,229, dated May 18, 1869.

IMPROVED BRACE FOR SPRINGBEDS.

The Schedule referred to in these Letters Patent and makingl part of thesame The object of my invention is to provide a means' for preventingany oscillation in spring-mattresses, more especially those known as theKre'ighoi' patenti'ron spi'ing-niattress# and consists in providingmetallic stays, or braces, constructed and arranged as will behereinafter more fully explained.

It is well known to the manufacturer, and trade generally, that in allspring-beds, where spiral springs are used between two frames, the upperframe, when weight is applied, will oscillate in various directions,rendering the bed unsteady, and, in time, impairing the springs, andrendering the whole structure loose and noisy. I am aware that manyattempts have been made to overcome these objections inspringmattresses, but, so tin as l am able to judge, none have provedeffectual. Y To enable those skilled in the art to make and understandmy invention, I will proceed to describe the same, referring by lettersto the accompanying drawings, in which- Figure 1 represents an end viewof an iron springmattress, with my improved brace applied to the same;

Figure 2, a side view of the same; and

Figure 3, a perspective View oi' one of the braces.

Similar letters oi' reference denote like parts in the diierent figures.

A is the top frame, and B, the bottom frame, composed of sheet-metalbands, or strips, interwoven or crossed at right angles, the springs, O,being secured at the points of intersection of the bands, and lyingbetween and holding apart the two said frames.

l) is the st-ay, or brace, which may be made of any suitable material,(metal.) I prefer to make them o' spring-bed wire. They are bent, asseen at e, g. 3, and formed with eyes at the two ends, and are appliedto the bed in the followngmanner:

The loop, or bend e, is made to embrace one coil of the spring, and isthen clamped thereon, the ends being forced apart and secured by rivets,through the eyes, fj, to the top and bottom outside bands,'or1strips ofthe frames. p

Of course the number is -not limited, it only being observed that theloopsre are always to be placed toward each other, the ends extending inthe opposite direction. f.

It will now be seen, that when weight or pressure is appliedto the topof the mattress, itrwill spring vertically, andany tendency to oscillateis eectually prevented, by the action of the braces, t. e., resisting.

in opposite directions. The brace will bow, or spring, to accommodateitselfto the altered distance between the point of contact with theframe and the spring to which it is clamped, which results from thecontraction and expansion of the springs. Having fully described theconstruction and operation of my improved brace, or stay,

What I claim as new, and desire to secure by Letters Patent, is

The brace D, clamped to the coil of the spring, at e, and secured to theupper and lower frames, by means of rivets, or their equivalent, passingthrough the eyes ff, substantially as shown, for the purpose set forth.In testimony whereof,1 have hereunto set myhand and aiiixed my seal,this 10th day of April,.A. D. 1869. Witnesses: H. D. BOLT. [L 8.]

WM. G. MCINTIRE, i T. S. GENLN.

